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Perception of impact of Dravet syndrome on children and caregivers in multiple countries: looking beyond seizures

Aim: To assess the relevance and generalizability across countries of concepts of the impact of Dravet syndrome beyond seizures, as recognized by families.

Method: Caregivers of children with Dravet syndrome in four countries (Australia [n=8]; USA, UK, and Italy [all n=4]) participated in 1-hour qualitative telephone interviews, identifying key Dravet syndrome concepts. Interviews were recorded, transcribed, and, where necessary, translated into English for thematic analysis. Conceptual saturation was assessed and findings compared to the previously developed French conceptual disease model.

Results: The most common seizure types reported by caregivers were tonic-clonic, absence, or focal-impaired awareness (localized/partial). Fever and physical activity were the most commonly reported triggers. Patient-relevant impacts included impairment in cognition, motor skills, communication, social skills, and behavioural functioning. Caregivers consistently reported negative social, physical, and family impacts. Concepts identified in the interviews showed similarity with the French conceptual model. Minor differences between countries are likely to reflect variations in health care systems.

Interpretation: Findings in Italy, Australia, UK, and USA confirm that the key impacts of Dravet syndrome on children and caregivers identified in France are generalizable across countries. Key symptom and impact concepts relevant to children and parents should be targeted as critical outcomes in new therapy evaluations.

What This Paper Adds: Relevance of the impact of Dravet syndrome on children and caregivers was confirmed across countries. Patient and caregiver-relevant Dravet syndrome impacts contribute to poorer health-related quality of life. Indirect seizure impacts were reported to be as important as direct impacts. Country-specific differences in concepts probably reflect differences in health care systems. 

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Key Information

Type of Reference
Jour
Type of Work
Journal article
Publisher
Blackwell
Publication Year
2019
Issue Number
10
Journal Titles
Developmental Medicine and Child Neurology
Volume Number
61
Start Page
1129
End Page
1136
Language
English